How to fix my Laptop Battery

I have a HP dv2000 laptop and throughout the years I have always kept it plugged into the charger and now my battery holds only for about 5 minutes or less. How do I bring the life back to my battery?
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  1. Not much you can do.

    Back in 2005 I kept my IBM ThinkPad T40 plugged into the AC outlet 24/7 for over 6 months with the battery installed. Before I did that I was able to get about 5.5 hour of usage. After that 6+ month period of continual charging the battery only lasted 10 minutes.

    After about a year of continual charging and fully discharging the battery the battery was able to hold about a charge for 2.5 hours at most. It never increased from there.

    Looks like it time for you to buy a new battery.
  2. jaguarskx said:
    Not much you can do.

    Back in 2005 I kept my IBM ThinkPad T40 plugged into the AC outlet 24/7 for over 6 months with the battery installed. Before I did that I was able to get about 5.5 hour of usage. After that 6+ month period of continual charging the battery only lasted 10 minutes.

    After about a year of continual charging and fully discharging the battery the battery was able to hold about a charge for 2.5 hours at most. It never increased from there.

    Looks like it time for you to buy a new battery.

    +1
    Batteries lose their charge semiconductivity and their efficiency over a period of time.
  3. ghnader hsmithot said:
    +1
    Batteries lose their charge semiconductivity and their efficiency over a period of time.


    Actually, my battery died 'cause it was being overcharged while the laptop was connected to the AC outlet for over 6 months. The same thing happened to the OP.
  4. Battery type plays an important role in maintain the battery.
    Over the years Nicad->NiMH->li-ion.
    Nicad; great for High Current, short time but had memory problems. primarily because individuals did not charge/discharge properly. Still used in power tools. Should always discharge to 1 volt per cell -NO LOWER. and charge at 1/10 AmpHr rating for 16 hours. Charging E should be limited to approx 1.35 V. storage - discharged

    Replaced by NiMH which drastically reduced memory effect - same charge dischare requirements. Primary usage today, also power tools.

    Li-ion. Higher volts per cell. No memory problem. Best for laptops. Storage - should be about 40% charged level.
    http://centralhobbies.com/instructional/lithium.html

    Concur with jaguarskx on removing battery when under prolonged usage of charger, But NOT because of overcharging. The circuitry should prevent this and longest life is reduced charge/discharge. The reason is more temperature driven
    Quote:
    For maximum storage life, batteries should be stored with a 40% charge (3.6 V) at 40°F (refrigerator). Perhaps one of the worst locations for a Li-ion battery is in a laptop computer when used daily on a desktop with the charger connected. Laptops typically run warm or even hot, raising the battery temperature, and the charger is maintaining the battery near 100% charge. Both of these conditions shorten battery life, which could be as short as six months to a year. If possible, the user should be instructed to remove the battery and use the ac adapter for powering the laptop when used as a desktop computer. A properly cared for laptop battery can have a service life of two to four years or more. END QUOTE
    Ref: http://powerelectronics.com/portable_power_management/battery_charger_ics/proper_care_extends-li-ion-battery-0425/
    Also an excellent artical on Li-ion batteries in general.
  5. I have a Home battery that I got with my laptop,
    lasts about 10 mins away from the magic wire so I bought a new battery for walkabout use,
    if I'm at home I plug the home battery in, if I'm out its the travel one, its just making sure you stick to the plan or you end up with 2 duff batteries
    Moto
  6. All laptops are different, however, they usually share the same similarities when removing the main battery. In the picture to the right there are just a few examples of some of the laptop battery latches that may be found....

    For more information click: <a href="http://www.techyv.com/questions/how-fix-my-laptop-battery#comment-34737"> http://www.techyv.com/questions/how-fix-my-laptop-battery#comment-34737</a>
  7. Avoid keeping your battery in hot places such as your car during the daytime.
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